Improvement in lamp-burners



UNITED STATES PATENT OEEIoE.

LEWIS J. ATW OOD, OF WATERBURY, CONNECTICUT, ASSIGNOR TO PLUME 8t ATWOODMANUFACTURING COMPANY, OF SAME PLACE.

IMPROVEMENT IN LAMP-BURNERS.

Specification formirg part of Letters Patent No. 163,439, dated May 18,1875; application filed April 7, 1875.

To all whom it may concern:

Be it known that I, LEwIs J. ATWOOD, of Waterbury, in the county of NewHaven and State of Connecticut, have invented an Improvement in Lamps,of which the following is a specification:

In the manufacture of lamps it is usual to employ wick-raising wheelsmade of sheet metal that is sufficiently thick to remain firm. upon thewire that forms the shaft for such wick-raising wheels when they havebeen pressed upon such shaft. The thickness of the Wheels renders itnecessary, generally, to bore out the holes in order to get them true,and to make the edges of such wheels thinner by turning or stamping, inorder that the points around the peripheries may be adapted to catchingthe wick and raising the same. My present invention is made forobviating the before-named difficulty, and also for facilitating theremoval of the deflector and chimney for cleaning, lighting, andtrimming the lamp.

In the drawing, Figure 1 is a vertical section of the lamp-burner. Fig.2 is a sectional plan at the line as x, and Fig. 3 is a section inlarger size, of the wick-raising wheels. Fig. 4 is an elevation, andFig. 5 is an edge view, of said wheels.

The wick-tube a, screw 12 for the reservoir, and ratchet-cap c are ofusual construction. From the body b the arms (I extend to the cylinder6, that rises nearly as high as the top of the wick-tube, and withinsaid cylinder there is a foraminous plate, forming the air-distributerk. The deflector f, cylinder g, and chimney-base It are all of one pieceof metal, or made together, and the deflector f rests upon the upper endof the cylinder 0, so that the cylinder g, chimney-base, and chimney aresuspended below this deflector f, and hence the parts will remain firmlytogether, and the cylinderg can slip freely upon the cylinder 0, and canbe removed with facility, together with the chimney-base and chimney,whenever access is desired to the wick for lighting, trimming, orcleaning the burner. In order to insure the proper relative positions ofthe flame-slot in the deflector and the wicktube when the parts areplaced together, 1 slot the cylinder g, and form projecting guide ribsor pins 6 at opposite sides upon the cylinder e. The chimney-rest h iscircular, and provided with clamping chimney-springs I, that retain thechimney r in place, and allow for the removal of the rest h, cylinder 9,and deflectorf with the chimney r. The chimney is shown by dotted linesin Fig. 1. The axis or shaft u of the wick-raisin g wheels 8 is a wire,at the end of which is a button, a, as usual but the wheels .9 are madeof comparatively thin sheet metal, cut out by dies, and made with acylindrical hub, 0, at one side, of a size to fit upon the shaft u.These wheels are formed by punching a small central hole in each, andthen pressing up the cylindrical hub into a die by a tapering punch. Bythis construction the cylindrical hub takes a sufficiently long bearingupon the shaft to firmly steady the wheel, the teeth around the edgesare sufficiently narrow and sharp to catch in the wick and raise thesame, and the wheels are less expensive to manufacture than thoseheretofore made. It is preferable to solder the wheels to the shaft.

I claim as my invention- 1. The removable portion of the burner, madewith a circular chimney-rest and spring chimney-clamps, a cylindricalbody, g, and a deflector at the top of the cylinder, all rigidly unitedtogether, in combination with the stationary portion of the burner,containing the wick-tube a, the air-distributer 7c, and the cylindricalbody 0, over which the removable cylinderg is placed when the parts ofthe burner are put together, and which cylinders are of nearly equallength, so as to firmly sustain the removable portion of the burner, asset forth.

2. The wick-raising wheels, made of sheet metal, with a cylindrical hubon one side, surrounding the shaft, as and for the purposes specified.

Signed by me this 1st day of April, 1875.

L. J. ATWOOD.

IVit-nesses:

H. M. STOCKING, O. H. BRONSON.

